Oil-burning apparatus



H. w. MANNING. on BURNING Amnnus'. APPLICATIO FILED DEC. 15' l9l9- Patented Mar. 14,- 1922.

vvlllli ll V UNITED STATES HARRY w. MANNING, or PORTLAND, OREGON.

OIL-BURNING APPARATUS.

Specification of Letters Patent. Patented Dia 14; 1922.

Application filed. December 15, 1919. Serial No. 845,158. i

To a]? whom it may concern:

Be it known that l, T'TARRY lV. MANNiNG,

' a citizen of the United States, and a resident of Portland, county of Multnomah, State of Oregon, have invented a new and useful Improvement in Oil-Burning Apparatus, of which the following is a specitication.

My invention relates to oil burning ap paratus as used in. domestic service, and supplied from a tank under pressure.

The object of my invention is to render such apparatus safe by automatic means preventing accidents.

The flow of oil thru conduit or hollow wire connecting the tank with the burner must necessarily be controlled by fuel valve. And in the accidental opening of such valve while the burner is not operating resides a constant highly dangerous condition. Such condition not infrequently is' occasioned when the burner goes out forlack of fuel in the tank, and the latter is recharged without first closing the cut off valve in the conduit. wire conduit breaks and causes a'flooding of the floor with fuel oil.

To prevent such accidents I provide in the conduit an automatic safety valve. that is a check valve, which is adapted to be closed by the pressure of the fuel oil under tank pressure through the valve, and in this way cutting off the flow of the fuel oil until the pressure of the fuel-oil vapor generated in the burner is sufficient to balance the tank pressure. of some fuel oil into the burner when starting the latter, I provide manual means for forcibly opening the safety valve against the tank pressure. These opening means are preferably spring controlled, and the spring is made to offer substantial resistance so as to require the application of substantial physical forcemore than a child would ordinarily eXert-in order to forcibly unseat said check valve; and the moment the pressure is released on the valve open- Then it may also happen that the I And in order to permit the flow prising'atank of fuel oil'under pressure, a burner, a conduit connecting the tank with the burner, and my safety valve installed in the conduit as in practice; f

Fig. 2 is a View of my safety valve and associated parts looking in the direction indicated by the arrow 2 of Fig, 1;

Fig. 3 is a larger scaled sectional elevation of those parts includedin the space enclosed by the broken line 8 in Fig. 1; and Fig. 4; is a larger scaled sectional ele va tion of the parts enclosed by the broken line dofFigQ. V I '5 64 represents the usual supply tank which is placed under pressure by the usual pump.

7) represents a. hydrocarbon burner. The burner may be of any clonvenienttype. That shown in Fig. 1 represents a type invented and marketed by me; such burner being described in detail in my accompanyingapplicationfor Lette1 s-v Patent filed in the United States Patent Office Dec. 15, 1919, Serial No. 345,157.. j I Briefly describingthis burner, it may be said to consist of a generator 0, a gas-mixing chamber (Z, and burner heads 6, e supplied from the gas mixing chamber; the air admitted into the gas mixing chamber being regulated by a valve 7. The tank a is connected with the burner b by a manually operated cut-off valve h, adetail of which is shown in Fig. 4. It comprises avalve housing in and a valve 2' provided ing. The stem p is provided with a disk and a spring 1" bears against the disk, in so doing normally holding the plunger 0 w1th-' drawn from the outlet orifice of the check valve. A stop-pin s transversely, inserted in the plunger 0, limits the lift of the coil spring 7".

As will have been noticed from Fig. 1, the conduit branch 9 connects with the cutvout valve h, and the conduit branch 9' leads. fI'Om the check valve Z to the burner.

Parts not 3 eeifically described aremere details of mec anical construction, and self evident from the drawings.

. When first starting-up theeburner, the 5 valve 11 is opened, this permits the flow of oil to the check valve l, but cannot pass the latter. The burner is then preliminarily heated, in any convenient way and when heated to the degree of vaporizing the fuel oil, the plunger is depressed so as to unseat the ball valvem for a second or, two so as to permit some fuel topass through the conduit into the burner. As soon as the burner vaporizes the oil,the pressure ofthe vapor 15 wi 1 be suificient to balance the pressure in the tank andin so doing permit-oilto flow from the latter to the burner.

1. The combination in an oil burning apparatus of a tank holding fuel oil under pressure, a hydro-carbon oil burner, a conduit connecting the two, a check valve, in the conduit normally closed by the pressure in the tank untilsuch pressure is counter balanced by thebackpressure of the vaporized fuel in theburner, manually. operated means for forcing the valve open, and means resisting the operation of said valve-opening-means and normally placing the same 80 in its inoperative position.

2. The combination in an -oil burning apparatus of a tank holding fuel oil under pressure, a hydro-carbon oil burner, a conduit connecting the two, a check valve, in

as the conduit normally closedby the pressure in the tank until such pressure is counter balanced by the back pressure of the vaporopening-means and normally placingthe same in its inoperative position.

3. The combination in an Oll burning apparatus of a tank holding the fuel oil under pressure, a hydro-carbon oilburner, a conduit connecting the two, a valve chamber in the conduit, such chamber provided with a valve seat at its forward end, a valve normally held on said valve seat by the pressure in said tank, whereby the flow of fuel to the burner is stopped until said pressure is counter balanced by the back pressure of the vaporized fuel in the burner, manually operated means for forcing said check valve from its seat, and means resisting the operation of said valve-opening-means and normally placin the-same in its inoperative position. 4. he combination in an oil burning apparatus of a tank holding fuel oil under pressure, a hydro-carbon oil burner, a conduit connecting the two, a valveehaniber in the conduit, such chamber provided with a valve seat atits forward end, arvalve normally held on said valve seat by the pressure in said tank, whereby the flow of fuel to the burner is stopped untilsaid pressure is counter-balanced by thepback pressure of the vaporized fuel in the burneia manually operated means for forcing said check valve from its seat, and a spring resisting the operation of said, valve-opening-means and normally placing the same inits inoperative HARRY, MANNING.

position. 

